Chapter 05 RETAINING WALLS (RW) - roads.maryland.gov · splices, not shown, shall be lapped as per...

OFFICE OF STRUCTURES STRUCTURAL DETAIL MANUAL

Chapter 05

RETAINING WALLS (RW)

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DATE:

STATE HIGHWAY ADMINISTRATION

DEPARTMENT OF TRANSPORTATION

STATE OF MARYLAND

SHEET OF

APPROVAL

GENERAL NOTES

Specifications:

-Revisions thereof and additions thereto and

Special Provisions for Materials and Construction

Concrete:

Earth pressure calculated based on Coulomb Theory.

All structure concrete shall be Mix. No. 3 (3500 psi) except

as noted below under reinforcing steel.

Reinforcing Steel:

Design Parameters:

Angle of Internal Friction:

33 degrees for excellent soil

30 degrees for good and poor soils (and all walls on pile footings)

Reinforcing Steel Design: fy = 60.0 ksi.

10-9-2007

LR D

VERIFIED

FOFFICE OF STRUCTURES

DIRECTOR

OFFICE OF STRUCTURES

-SHA Specifications dated July, 2008

AASHTO LRFD Bridge Design Specifications, 5th edition, 2010.

Concrete Design: LRFD, f’c= 3.0 ksi.

RW-101

STANDARD RETAINING WALLGENERAL NOTES

Reinforcing steel shall conform to A 615, Grade 60. All

splices, not shown, shall be lapped as per Bar Lap Charts.

Minimum cover for any bar shall be 2’’ unless otherwise

noted, with the exception of bars at the bottom and sides of

all footings which shall have 3’’ minimum cover.

For Wall Types E and F, passive earth pressure from top

of footing to bottom of shear key was utilized in the design.

In these cases, the top of footing shall have a minimum of

30’’ cover.

Safe bearing pressures are factored resistances.

If the front face of a retaining wall less than 10 feet from

the edge of paved surfaces, epoxy coated reinforcement shall

be used in the front face of the stem and Mix. No. 6 (4500 psi)

concrete shall be used for the stem.

ONLY GRADE 60 CAN BE USED.

DETAIL NO.

VERSION

1.0

03/21/2014

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Notes:

If in the length of a wall the type of wall changes

and provides for a different thickness of stem,

greater than the least wall thickness.

alternative is selected.

1.

2.

3.

H A B C D

6’-0’’

8’-0’’

10’-0’’

12’-0’’

14’-0’’

16’-0’’

18’-0’’

20’-0’’

1’-0’’

1’-0’’

1’-0’’

1’-0’’

1’-3’’

1’-9’’

1’-0’’

1’-0’’

E

1’-0’’

1’-0’’

1’-3’’

1’-3’’

1’-6’’

1’-6’’

1’-6’’

c/c#5 @ 1’-0’’

c/c#5 @ 1’-0’’c/c#5 @ 1’-0’’

c/c

c/c

c/c

TYPICAL SECTION

Scale: 1/2 ’’ = 1’-0’’

3’’c

l.

B A C

D

c/c#4 @ 1’-6’’ Typ.

E

H

6’’

6’’

2’’c

l.

F

2’’ cl.2’’ cl.

A

Rear face plumb, to be dampproofed

from top of footing up to finished

2’’ cl.3’-0’’ long.

A/2

Footi

ng

Co

ncre

te

Ste

m C

oncre

te

*

*

DETAIL A

Scale: None

(See note 2 below)

*

1’-6’’

2’-0’’

3’-3’’

4’-6’’

5’-6’’

6’-0’’

3’-9’’

5’-0’’

6’-3’’

1’-6’’

#6 @ 1’-0’’

#7 @ 6’’

A-I

A-I I

A-111

A-IV

A-V

A-VI

A-VII

A-VIII

1’-3’’

1’-6’’

10’-3’’

11’-3’’ #8 @ 6’’

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

2’-1

’’

Dowel bar ** **

(Typ.)**

Dowel bar

**

**

c/c#7 @ 1’-0’’

F

2’-2’’

2’-2’’

3’-6’’

3’-6’’

c/c#5 @ 1’-0’’

c/c

c/c

Dowel Bar

Rear

c/c#5 @ 1’-0’’

c/c#7 @ 1’-0’’

#8 @ 6’’

#7 @ 6’’

c/c#7 @ 6’’

c/c#7 @ 6’’

c/c#6 @ 6’’

6’-9’’

Front

Top Footing BarRear Dowel Bar

Main Stem Bar

Contractor has option of lapping main stem

reinforcement with rear dowel reinforcement

as shown; or by extending the rear dowel

reinforcement with no splicing.

7’-3’’

c/c#6 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#8 @ 1’-0’’

c/c#6 @ 1’-0’’

3’-6’’

4’-7’’

c/c#7 @ 6’’

2’-7’’

2’-7’’

Proposed Finished Groundline.9’’

9’’

1’-0

’’

9’’

9’’

9’’

9’’

7’-9’’

7’-3’’

8’-3’’

9’-3’’

c/c#7 @ 6’’

c/c#6 @ 6’’

c/c#5 @ 1’-0’’

material that can support a safe bearing pressure

A

3’’cl.

4. These walls are valid if traffic is present on

the level area adjacent to the wall.

DIRECTOR

(typ.)

of 5 ksf and has an angle of friction of 33^.

An ’’Excellent Soil Condition’’ is that foundation

then ’’Detail A’’ shall be used for all walls of

5-8-2008

LR D

VERIFIED



2’-3’’

c/c#6 @ 6’’

RW-102

Wall

Type



groundline.

Least Wall Type thickness

for a particular total length of wall.

Top Main Stem

Reinforcement

2-#6’s to follow

slope of wall.

Main

Stem Bar

Top

Foot. Bar

Proposed Finished

Groundline.

TYPE A RETAINING WALL SECTION(FOR EXCELLENT SOIL CONDITION AND

TWO FOOT SURCHARGE)

For Drainage System,

See RW(0.01)-80-100

or BR-SB(0.01)-80-101

Where specific footing concrete

and stem concrete items are included

in the Proposal for a particular

wall, these shall be the pay limits.

However, no additional compensation to

Contractor will be allowed for whichever

Where no specific items have been

set up in the Proposal, the cost

of wall shall be included in the

main structure Contract price, i.e.;

box culvert, (where wings are

included in box culvert item),;

retaining wall, (where no separate

pay items are established), etc.

#4 @ 1’-6’’ c/c for

wall types A- I thru A- IV

#4 @ 1’-0’’ c/c for

wall types A- V and A- VI

#5 @ 1’-0’’ c/c for

wall types A- VII and A- VIII

VERSION

DETAIL NO.

1.0

12/04/2013

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Notes:





1.

2.

3.

H A B C D

6’-0’’

8’-0’’

10’-0’’

12’-0’’

14’-0’’

16’-0’’

18’-0’’

20’-0’’

1’-0’’

1’-0’’

1’-0’’

1’-0’’

1’-3’’

1’-9’’

2’-3’’

1’-3’’

1’-6’’

E

1’-0’’

1’-0’’

1’-3’’

1’-3’’

1’-6’’

1’-9’’

1’-9’’

c/c#5 @ 1’-0’’

c/c#5 @ 1’-0’’c/c#5 @ 1’-0’’

c/c

c/c

TYPICAL SECTION

Scale: 1/2 ’’ = 1’-0’’

3’’c

l.

B A C

D

c/c#4 @ 1’-6’’ Typ.

E

H

6’’

6’’

2’’c

l.

F

2’’ cl.2’’ cl.

A



2’’ cl.3’-0’’ long.

A/2

Footi

ng

Co

ncre

te

Ste

m C

oncre

te

*

DETAIL A

Scale: None

(See note 2 below)

*

1’-6’’

2’-6’’

3’-6’’

4’-6’’

5’-6’’

6’-0’’

4’-3’’

5’-3’’

6’-6’’

1’-6’’

#6 @ 1’-0’’

#7 @ 6’’

B-I

B-I I

B-111

B-IV

B-V

B-VI

B-VII

B-VIII

1’-9’’

2’-3’’

10’-9’’

13’-0’’

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

2’-1

’’

Dowel bar ** **

(Typ.)**

Dowel bar

**

c/c#8 @ 1’-0’’

F

2’-2’’

2’-2’’

3’-6’’

3’-6’’

c/c#5 @ 1’-0’’

c/c

c/c

Dowel Bar

Rear

c/c#5 @ 1’-0’’

c/c#7 @ 1’-0’’

#8 @ 6’’

#7 @ 6’’

c/c#7 @ 6’’

c/c#7 @ 6’’

c/c#6 @ 6’’

6’-9’’

Front


Main Stem Bar





3’-6’’

4’-7’’

7’-3’’

c/c#8 @ 6’’

c/c#6 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#7 @ 6’’

2’-7’’

2’-7’’

9’’

1’-0

’’Proposed Finished Groundline.9’

’

9’’

9’’

8’-6’’

7’-6’’

8’-6’’

9’-9’’

c/c#7 @ 6’’

c/c#6 @ 6’’

c/c#5 @ 1’-0’’


1’-0’’

1’-0’’

c/c#6 @ 6’’

A

3’’cl.



(typ.)


A ’’Good Soil Condition’’ is that foundation


5-8-2008

LR D

VERIFIED


DIRECTOR


c/c#6 @ 6’’

**

RW-103

Wall

Type



groundline.



Top Main Stem

Reinforcement

2-#6’s to follow

slope of wall.

Main

Stem Bar

Top

Foot. Bar

Proposed Finished

Groundline.

TYPE B RETAINING WALL SECTION(FOR GOOD SOIL CONDITION AND

TWO FOOT SURCHARGE)However, no additional compensation to


*













#4 @ 1’-6’’ c/c for

wall types B- I thru B- IV

#4 @ 1’-0’’ c/c for

wall types B- V and B- VI

#5 @ 1’-0’’ c/c for

wall types B- VII and B- VIII


See RW-301

or SUB-DR-203

VERSION

DETAIL NO.

1.0

12/04/2013

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Notes:





1.

2.

3.

H A B C D

6’-0’’

8’-0’’

10’-0’’

12’-0’’

14’-0’’

16’-0’’

18’-0’’

20’-0’’

1’-0’’

1’-0’’

1’-0’’

1’-0’’

1’-3’’

2’-3’’

2’-3’’

E

1’-0’’

1’-0’’

1’-3’’

1’-3’’

1’-6’’

1’-9’’

1’-9’’

c/c#5 @ 1’-0’’

c/c#5 @ 1’-0’’c/c#5 @ 1’-0’’

c/c

c/c

c/c

c/c

TYPICAL SECTION

Scale: 1/2 ’’ = 1’-0’’

3’’c

l.

B A C

D

c/c#4 @ 1’-6’’ Typ.

E

H

6’’

6’’

2’’c

l.

F

2’’ cl.2’’ cl.

A



2’’ cl.3’-0’’ long.

A/2

Footi

ng

Co

ncre

te

Ste

m C

oncre

te

*

DETAIL A

Scale: None

(See note 2 below)

*

1’-6’’

2’-6’’

3’-6’’

4’-6’’

5’-6’’

6’-0’’

4’-3’’

5’-3’’

6’-6’’

1’-6’’

#6 @ 1’-0’’

#7 @ 6’’

#7 @ 6’’

C-I

C-I I

C-111

C-IV

C-V

C-VI

C-VII

C-VIII #8 @ 6’’

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

2’-1

’’

Dowel bar ** **

(Typ.)**

Dowel bar

**

c/c#7 @ 1’-0’’

F

2’-2’’

2’-2’’

3’-6’’

3’-6’’

c/c#5 @ 1’-0’’

c/c

c/c

Dowel Bar

Rear

c/c#5 @ 1’-0’’

c/c#7 @ 1’-0’’

#8 @ 6’’

#7 @ 6’’

c/c#7 @ 6’’

c/c#7 @ 6’’

c/c#6 @ 6’’

6’-9’’

Front


Main Stem Bar





3’-6’’

4’-7’’

7’-3’’ c/c#7 @ 1’-0’’

c/c#8 @ 1’-0’’

c/c#6 @ 1’-0’’2’-7’’

2’-7’’

9’’

1’-0

’’Proposed Finished Groundline.9’

’

9’’

9’’

8’-9’’

7’-6’’

c/c#7 @ 6’’

c/c#6 @ 6’’

c/c#5 @ 1’-0’’


1’-0’’

1’-0’’

c/c#6 @ 6’’

A

3’’cl.



(typ.)


A ’’Poor Soil Condition’’ is that foundation


10-9-2007

LR D

VERIFIED

F

4’-0’’

3’-0’’

2’-3’’

1’-6’’

15’-0’’

12’-6’’

10’-6’’

8’-9’’


DIRECTOR


c/c#6 @ 6’’

**

RW-104

Wall

Type



groundline.



Top Main Stem

Reinforcement

2-#6’s to follow

slope of wall.

Main

Stem Bar

Top

Foot. Bar

Proposed Finished

Groundline.

TYPE C RETAINING WALL SECTION(FOR POOR SOIL CONDITION AND

TWO FOOT SURCHARGE)However, no additional compensation to


*













#4 @ 1’-6’’ c/c for

wall types C- I thru C- IV

#4 @ 1’-0’’ c/c for

wall types C- V and C- VI

#5 @ 1’-0’’ c/c for

wall types C- VII and C- VIII


See RW-301

or SUB-DR-203

VERSION

DETAIL NO.

12/04/2013

1.0

DATE:

APPROVAL

1 1

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Notes:





1.

2.

3.

H A B C D

6’-0’’

8’-0’’

10’-0’’

12’-0’’

14’-0’’

16’-0’’

1’-0’’

1’-0’’

1’-0’’

1’-6’’

1’-9’’ 1’-9’’

1’-9’’

E

1’-0’’

1’-3’’

1’-6’’

1’-6’’

1’-6’’

c/c#5 @ 1’-0’’

c/c#5 @ 1’-0’’c/c#5 @ 1’-0’’

c/c

c/c#4 @ 1’-6’’ Typ.

E

H

6’’

6’’

2’’c

l.

F

2’’ cl.2’’ cl.

A



2’’ cl.

1’-0

’’

3’-0’’ long.

A/2

Ste

m C

oncre

teDETAIL A

Scale: None

(See note 2 below)

*

1’-9’’

1’-6’’

2’-6’’ 4’-9’’

1’-9’’

#6 @ 1’-0’’

D-I

D-I I

D-111

D-IV

D-V

D-VI

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

2’-1

’’

Dowel bar ****

(Typ.)**

Dowel bar**

9’’

c/c#8 @ 1’-0’’

F

2’-2’’

2’-2’’

3’-6’’

4’-7’’

c/c#5 @ 1’-0’’

c/c

Dowel Bar

Rear

c/c#5 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#8 @ 6’’

c/c#7 @ 6’’

c/c#6 @ 6’’

#6 @ 6’’

FrontTop Footing Bar

Main Stem Bar

9’’

21





1’-6’’

1’-6’’ c/c#6 @ 1’-0’’ c/c#6 @ 1’-0’’

c/c#8 @ 6’’

2’-7’’

2’-7’’

4.


TYPICAL SECTION

Scale: 1/2 ’’ = 1’-0’’

3’’c

l.

B A C

D

Footi

ng

Concre

te

*

18’-0’’ 2’-3’’2’-0’’ 2’-0’’ c/c#9 @ 1’-0’’5’-9’’ c/c#9 @ 6’’c/c#9 @ 6’’

20’-0’’ 2’-6’’ 2’-6’’ c/c#9 @ 1’-0’’5’-9’’ c/c#9 @ 6’’c/c#9 @ 6’’

D-VII

D-VIII

c/c#6 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#5 @ 1’-0’’

Rear Dowel Bar

3’’cl.

A

These walls are valid if the sloping backfill levels off

1’-3’’

and traffic is present on the level area.

(typ.)


An ’’Excellent Soil Condition’’ is that foundation


10-9-2007

LR D

VERIFIED

F

4’-3’’

6’-0’’

7’-0’’

8’-3’’

10’-0’’

11’-0’’

12’-6’’ 17’-3’’

15’-3’’

13’-6’’

11’-9’’

10’-0’’

8’-6’’

6’-9’’


DIRECTOR


2’-6’’

**

RW-105

Wall

Type



groundline.

Proposed Finished

Groundline.



Top Main Stem

Reinforcement

2-#6’s to follow

slope of wall.

Proposed Finished

Groundline.

Main

Stem Bar

Top

Foot. Bar

TYPE D RETAINING WALL SECTION(FOR EXCELLENT SOIL CONDITION

AND SLOPING GROUNDLINE)

*















#4 @ 1’-6’’ c/c for

wall types D- I thru D- III

#4 @ 1’-0’’ c/c for

wall types D- IV and D- V

#5 @ 1’-0’’ c/c for

wall types D- VI thru D- VIII


See RW-301

or SUB-DR-203

VERSION

DETAIL NO.

12/04/2013

1.0

1 1

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Notes:





1.

2.

3.

H A B C D

6’-0’’

8’-0’’

10’-0’’

12’-0’’

14’-0’’

16’-0’’

1’-0’’

1’-0’’

1’-0’’

1’-3’’

1’-6’’ 2’-6’’

3’-0’’

E

1’-0’’

1’-0’’

1’-0’’

1’-6’’

1’-9’’

c/c#5 @ 2’-0’’

c/c#5 @ 2’-0’’c/c#5 @ 2’-0’’

c/c

1’-0

’’

3’-0’’ long.

DETAIL A

Scale: None

(See note 2 below)

1’-9’’

2’-0’’

4’-6’’

4’-9’’

5’-6’’

7’-3’’

7’-3’’

7’-6’’

10’-6’’

11’-6’’

13’-3’’ 2’-0’’

#7 @ 1’-0’’

E-I

E-I I

E-111

E-IV

E-V

E-VI

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

Dowel bar **

F

2’-2’’

2’-2’’

3’-6’’

4’-7’’

c/c

c/c#5 @ 2’-0’’

c/c#7 @ 1’-0’’

c/c#8 @ 6’’

c/c#7 @ 6’’

c/c#7 @ 6’’

c/c#5 @ 6’’

#6 @ 6’’

9’’





1’-9’’

1’-9’’

1’-9’’ c/c#6 @ 1’-0’’

c/c#8 @ 1’-0’’

2’-7’’

3’-6’’


G

1’-0’’

1’-0’’

3’-0’’

3’-0’’

2’-0’’

2’-0’’

TYPICAL SECTION

Scale: 1/2 ’’ = 1’-0’’

3’’c

l.

B A C

D

c/c#4 @ 1’-6’’ Typ.

E

H

6’’

6’’

2’’c

l.

F

2’’ cl.2’’ cl.

A



2’’ cl.

A/2

Footi

ng

Concre

te

Ste

m C

oncre

te

**

2’-1

’’

**

(Typ.)**

Dowel bar**

9’’

Front

Top Footing Bar

Main Stem Bar

21

G

c/c#5 @ 6’’

4.

18’-0’’ 3’-6’’2’-3’’ 16’-0’’ 2’-3’’ 5’-9’’ c/c#9 @ 6’’c/c#9 @ 1’-0’’10’-3’’ 3’-0’’

20’-0’’ 4’-3’’2’-9’’ 19’-0’’ 2’-6’’ 5’-9’’ c/c#9 @ 6’’c/c#9 @ 1’-0’’12’-0’’ 3’-0’’

E-VII

E-VIII

7’-6’’

8’-6’’

8’-3’’

A

3’’cl.

Pour against undisturbed material



***

***

Straight Rear Dowel Bar

Hooked Rear Dowel Bar

c/c#5 @ 1’-0’’

c/c#5 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#6 @ 1’-0’’

c/c#8 @ 1’-0’’

c/c#9 @ 1’-0’’

c/c#9 @ 1’-0’’

Dowel Bar

Hooked Rear

Dowel Bar

Straight Rear

c/c#7 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#6 @ 1’-0’’

c/c#8 @ 1’-0’’

c/c#9 @ 1’-0’’

c/c#9 @ 1’-0’’

(typ.)


A ’’Good Soil Condition’’ is that foundation


5-8-2008

LR D

VERIFIED


DIRECTOR


**

RW-106

Wall

Type

Proposed Finished

Groundline.



Top Main Stem

Reinforcement

Top

Foot. Bar



groundline.

2-#6’s to follow

slope of wall.Proposed Finished

Groundline.

Slope As Steep As

Ground Will Allow

TYPE E RETAINING WALL SECTION(FOR GOOD SOIL CONDITIONAND SLOPING GROUNDLINE)

Alternate Hooked Bars

with Straight Bars

Main

Stem Bar

*















#4 @ 1’-6’’ c/c for

wall types E- I thru E- III

#4 @ 1’-0’’ c/c for

wall types E- IV and E- V

#5 @ 1’-0’’ c/c for

wall types E- VI thru E- VIII


See RW-301

or SUB-DR-203

DETAIL NO.

VERSION

12/04/2013

1.0

1 1

RE

TA

ININ

G W

AL

LS

Notes:





1.

2.

3.

H A B C D

6’-0’’

8’-0’’

10’-0’’

12’-0’’

14’-0’’

16’-0’’

1’-0’’

1’-0’’

1’-0’’

1’-3’’

1’-6’’ 3’-0’’

4’-0’’

E

1’-0’’

1’-0’’

1’-0’’

1’-6’’

1’-9’’

c/c#5 @ 1’-0’’

c/c#5 @ 1’-0’’c/c#5 @ 2’-0’’

c/c

1’-0

’’

3’-0’’ long.

DETAIL A

Scale: None

(See note 2 below)

1’-9’’

2’-0’’

4’-6’’

4’-9’’

5’-6’’

7’-3’’

7’-3’’

7’-6’’

10’-6’’

12’-0’’

14’-3’’ 2’-0’’

#7 @ 1’-0’’

F-I

F-I I

F-111

F-IV

F-V

F-VI

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

Dowel bar **

c/c#8 @ 1’-0’’

F

2’-2’’

2’-2’’

3’-6’’

4’-7’’

c/c

c/c#5 @ 2’-0’’

c/c#7 @ 1’-0’’

c/c#8 @ 6’’

c/c#7 @ 6’’

c/c#7 @ 6’’

c/c#5 @ 6’’

#6 @ 6’’

9’’





1’-9’’

1’-9’’

1’-9’’ c/c#6 @ 1’-0’’2’-7’’

3’-6’’

G

1’-0’’

1’-0’’

3’-0’’

3’-0’’

2’-0’’

2’-0’’

c/c#5 @ 6’’


TYPICAL SECTION

Scale: 1/2 ’’ = 1’-0’’

3’’c

l.

B A C

D

c/c#4 @ 1’-6’’ Typ.

E

H

6’’

6’’

F

2’’ cl.2’’ cl.

A



2’’ cl.

A/2

Footi

ng

Concre

te

Ste

m C

oncre

te

**

2’-1

’’

**

(Typ.)**

Dowel bar**

9’’

Front

Top Footing Bar

Main Stem Bar

21

G

4.

18’-0’’ 5’-0’’2’-3’’ 17’-6’’ 2’-3’’ c/c#9 @ 1’-0’’5’-9’’ c/c#9 @ 6’’3’-0’’10’-3’’

20’-0’’ 6’-3’’2’-9’’ 21’-0’’ 2’-6’’ c/c#9 @ 1’-0’’5’-9’’ c/c#9 @ 6’’3’-0’’12’-0’’F-VIII

F-VII

7’-6’’

8’-6’’

8’-3’’

A

Pour against undisturbed material

3’’cl.



2’’c

l.

***

***

Straight Rear Dowel Bar

Hooked Rear Dowel Bar

c/c#5 @ 2’-0’’

c/c#5 @ 2’-0’’

Dowel Bar

Hooked Rear

Dowel Bar

Straight Rear

c/c#7 @ 1’-0’’

c/c#8 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#6 @ 1’-0’’

c/c#9 @ 1’-0’’

c/c#9 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#8 @ 1’-0’’

c/c#7 @ 1’-0’’

c/c#6 @ 1’-0’’

c/c#9 @ 1’-0’’

c/c#9 @ 1’-0’’

(typ.)


A ’’Poor Soil Condition’’ is that foundation


5-8-2008

LR D

VERIFIED


DIRECTOR


**

RW-107

Wall

Type

Proposed Finished

Groundline.



Top Main Stem

Reinforcement

Main

Stem Bar

Top

Foot. Bar



groundlline.

2-#6’s to follow

slope of wall.Proposed Finished

Groundline.

Slope As Steep As

Ground Will Allow

TYPE F RETAINING WALL SECTION(FOR POOR SOIL CONDITIONAND SLOPING GROUNDLINE)

Alternate Hooked Bars

with Straight Bars

*















#4 @ 1’-6’’ c/c for

wall types F- I thru F- III

#4 @ 1’-0’’ c/c for

wall types F- IV and F- V

#5 @ 1’-0’’ c/c for

wall types F- VI thru F- VIII


See RW-301

or SUB-DR-203

VERSION

DETAIL NO.

12/04/2013

1.0

E

H

6’’ 6’’

2’’cl.

F

9’’

2’’

cl.

2’’

cl.

A

9’’

2’’

cl.

1’-0’’

A/2

Footing

Concrete

Stem Concrete *

DE

TA

IL A

Scale

: N

on

e

*

2’-1’’

Do

wel

bar*

**

*

(Typ

.)*

*

3’’cl.

D

1’-6

’’1’

-6’’

CB

1

3

1’-0’’ 3’’ cl.

TY

PIC

AL

SE

CT

ION

Sca

le:

1/2

’’

= 1

’-0’’

3’’c

l.

c /c

#5

@ 1

’-0

’’

T

yp

.

Each w

ay o

ver

pil

es

Top F

ooti

ng B

ar

Main

Ste

m B

ar

3 -

#6’s

@ 4

’’ c

/c

3’-

0’’

lo

ng

.

Cle

ar

Pil

es)

1 2

RE

TA

ININ

G W

AL

LS

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

(See n

ote

no

. 1

Sh

eet

2)

c /c

#5

@ 1

’-0

’’

T

yp

.

Bott

om

Footi

ng B

ar

(Resp

ace B

ott

om

Footi

ng B

ars

to

Rear

Do

wel

Bar

A

Dow

el b

ar**

Fro

nt

Pro

pose

d F

inis

hed G

roundli

ne.

(typ.)

11-13-2007

LR D

VERIFIED


DIRECTOR


**

RW-108

To

p M

ain

Ste

m

Rein

forc

em

en

t

2-#

6’s

to

fo

llo

w

slo

pe o

f w

all

.

Least

Wall

Ty

pe t

hic

kn

ess

fo

r a p

art

icu

lar

tota

l le

ng

th o

f w

all

.

TYPE G RETAINING WALL SECTION (FOR PILEFOOTING AND TWO FOOT SURCHARGE)

Pro

po

sed

Fin

ish

ed

Gro

un

dli

ne.

Rear

face p

lum

b,

to b

e d

am

pp

roo

fed

fro

m t

op

of

foo

tin

g u

p t

o f

inis

hed

gro

undli

ne.

*

Where

specif

ic f

ooti

ng c

oncre

te

an

d s

tem

co

ncre

te i

tem

s a

re i

nclu

ded

in t

he P

roposal

for

a p

art

icula

r

wall

, th

ese s

hall

b

e t

he p

ay

lim

its.

Where

no s

pecif

ic i

tem

s h

ave b

een

set

up

in

th

e P

rop

osal,

th

e c

ost

of

wall

shall

be i

nclu

ded i

n t

he

main

str

uctu

re C

on

tract

pri

ce,

i.e.;

box c

ulv

ert

, (w

here

win

gs a

re

inclu

ded

in

bo

x c

ulv

ert

ite

m),

;

reta

inin

g w

all

, (w

here

no s

epara

te

pay

ite

ms a

re e

sta

bli

sh

ed

), e

tc.

#4

@ 1

’-6

’’ c

/c f

or

wall

ty

pes

G-

I t

hru

G-

IV

#4 @

1’-

0’’

c/c

for

wall

types

G-

V a

nd G

- V

I

#5 @

1’-

0’’

c/c

for

wal

l ty

pes

G-

VII

an

d G

- V

III

For

Dra

inage S

yst

em

, S

ee R

W-3

01

or

SU

B-D

R-2

03

VERSION

DETAIL NO.

12/04/2013

1.0

HA

BC

DE

FJ

KK

JK

JK

40 T

ON

S25 T

ON

S55 T

ON

S70 T

ON

SS

cale

: 1

/2 ’

’ =

1’-

0’’

TY

PIC

AL

PIL

E P

LA

N

J

6’-0

’’

8’-0

’’

10’-

0’’

12’-

0’’

14’-

0’’

16’-

0’’

18’-

0’’

20’-

0’’

1’-0

’’

1’-0

’’

1’-0

’’

1’-0

’’

1’-3

’’

1’-6

’’

1’-9

’’

2’-0

’’

0’-9

’’

0’-9

’’

0’-9

’’

1’-0

’’

1’-6

’’

1’-9

’’

2’-3

’’

2’-6

’’

4’-3

’’

4’-3

’’

4’-3

’’

4’-3

’’

4’-3

’’

4’-3

’’

4’-3

’’

4’-3

’’

6’-0

’’

6’-0

’’

6’-0

’’

6’-3

’’

7’-0

’’

8’-3

’’

7’-6

’’

8’-9

’’

2’-3

’’

2’-3

’’

2’-3

’’

2’-3

’’

2’-3

’’

2’-6

’’

2’-6

’’

2’-9

’’

#5

@ 1

’-0

’’

#5

@ 1

’-0

’’

#7

@ 6

’’

#7

@ 6

’’

#7

@ 6

’’

#8

@ 6

’’

#8

@ 6

’’

#5

@ 1

’-0

’’#

5 @

1’-

0’’

#5

@ 1

’-0

’’#

5 @

1’-

0’’

#5

@ 1

’-0

’’

#7

@ 1

’-0

’’

#7

@ 1

’-0

’’

#7

@ 1

’-0

’’

#8

@ 1

’-0

’’

#8

@ 1

’-0

’’

2’-2

’’

2’-2

’’

2’-2

’’

3’-0

’’

3’-0

’’

3’-6

’’

3’-6

’’

4’-7

’’

5’-0

’’

5’-0

’’

10’-

0’’

10’-

0’’

4’-9

’’9’

-6’’

2 2

RE

TA

ININ

G W

AL

LS

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

#5

@ 6

’’

#7

@ 6

’’

#7

@ 6

’’

#7

@ 6

’’

#8

@ 6

’’

#8

@ 6

’’

#5

@ 1

’-0

’’

#5

@ 1

’-0

’’

#5

@ 1

’-0

’’

#7

@ 1

’-0

’’

#7

@ 1

’-0

’’

#7

@ 1

’-0

’’

#8

@ 1

’-0

’’

#8

@ 1

’-0

’’

#5

@ 6

’’

PIL

E C

AP

AC

ITY

- D

ES

IGN

LO

AD

5’-0

’’5’

-0’’

5’-0

’’10

’-0’

’10

’-0’

’10

’-0’

’

5’-0

’’5’

-0’’

5’-0

’’10

’-0’

’10

’-0’

’10

’-0’

’

5’-0

’’5’

-0’’

5’-0

’’10

’-0’

’10

’-0’

’10

’-0’

’

4’-9

’’4’

-9’’

9’-6

’’9’

-6’’

4’-6

’’4’

-6’’

9’-0

’’9’

-0’’

4’-6

’’9’

-0’’

G-I

G-I

I

G-1

11

G-I

V

G-V

G-V

I

G-V

II

G-V

III

K

JJ

1’-6

’’1’

-6’’

D

4’-0

’’8’

-0’’

2’-9

’’5’

-6’’

3’-6

’’7’

-0’’

2’-9

’’5’

-6’’

3’-9

’’7’

-6’’

3’-0

’’6’

-0’’

3’-9

’’7’

-6’’

3’-0

’’6’

-0’’


DIRECTOR


Note

s:

Contr

acto

r has o

pti

on o

f la

ppin

g s

tem

If i

n t

he l

ength

of

a w

all

th

e t

ype o

f w

all

changes

and p

rovid

es f

or

a d

iffe

rent

thic

kness o

f ste

m,

gre

ate

r th

an

th

e l

east

wall

th

ick

ness.

rein

forc

em

en

t w

ith

to

e r

ein

forc

em

en

t an

d/o

r

do

wels

as s

ho

wn

; o

r b

y e

xte

nd

ing

th

e t

oe

an

d/o

r d

ow

el

rein

forc

em

en

t w

ith

no

sp

licin

g.

alt

ern

ati

ve i

s s

ele

cte

d.

1.

2.

3. H

pil

es s

how

n f

or

illu

str

ati

on p

urp

ose o

nly

.

Contr

act

Dra

win

g.

Fo

r p

ile t

yp

e,

see P

ile L

ay

ou

t o

n p

ert

inen

t

4. P

ile s

pacin

gs

are

maxim

um

. F

or

actu

al

pil

e s

pacin

g,

see P

ile L

ayout

on p

ert

inent

contr

act

dra

win

g.

These w

all

s a

re v

ali

d i

f tr

aff

ic i

s p

resent

on

then

’’D

eta

il A

’’ s

hall

be u

sed

fo

r all

w

all

s o

f

5.

6.

11-13-2007

LR D

VERIFIED

F

RW-108

Wal

l

Ty

pe

Rear

Dow

el B

ar

Top

Footi

ng B

ar

Mai

n

Ste

m B

ar

Bo

tto

m

Footi

ng B

ar

TYPE G RETAINING WALL SECTION (FOR PILEFOOTING AND TWO FOOT SURCHARGE)

Ho

wev

er,

no

ad

dit

ion

al

co

mp

en

sati

on

to

Co

ntr

acto

r w

ill

be a

llo

wed

fo

r w

hic

hev

er

the l

evel

are

a a

dja

cent

to t

he w

all

.

Capacit

ies i

nclu

de r

esis

tance f

acto

rs (

LR

FD

only

).

VERSION

DETAIL NO.

12/04/2013

1.0

1 2

RE

TA

ININ

G W

AL

LS

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

E

H

6’’ 6’’

2’’cl.

F

2’’

cl.

2’’

cl.

A

2’’

cl.

A/2

Footing

Concrete

Stem Concrete *

DE

TA

IL A

Scale

: N

on

e

*

2’-1’’

Do

wel

bar*

*

**

(Typ

.)*

*

3’’cl.

D

1’-6

’’1’

-6’’

CB

1

3

1’-0’’ 3’’ cl.

TY

PIC

AL

SE

CT

ION

Sca

le:

1/2

’’

= 1

’-0’’

3’’c

l.

Ty

p.

c /c

#5

@ 1

’-0

’’

T

yp

.

Each w

ay o

ver

pil

es

Top F

ooti

ng B

ar

Main

Ste

m B

ar

3 -

#6’s

@ 4

’’ c

/c

3’-

0’’

lo

ng

.

9’’

21

1’-0’’9’’

(See n

ote

no

. 1

Sh

eet

2)

Cle

ar

Pil

es)

Bott

om

Footi

ng B

ar

(Resp

ace B

ott

om

Footi

ng B

ars

to

c /c

#5

@ 1

’-0

’’

T

yp

.

Rear

Do

wel

Bar

A

Dow

el b

ar**

Fro

nt

11-13-2007

LR D

VERIFIED


DIRECTOR


**

RW-109

To

p M

ain

Ste

m

Rein

forc

em

en

t

2-#

6’s

to

fo

llo

w

slo

pe o

f w

all

.

Least

Wall

Ty

pe t

hic

kn

ess

fo

r a p

art

icu

lar

tota

l le

ng

th o

f w

all

.

Pro

pose

d F

inis

hed

Gro

undli

ne.

Pro

pose

d F

inis

hed

Gro

undli

ne.

TYPE H RETAINING WALL SECTION (FOR PILEFOOTING AND SLOPING GROUNDLINE)

Rear

face p

lum

b,

to b

e d

am

pp

roo

fed

fro

m t

op

of

foo

tin

g u

p t

o f

inis

hed

gro

undli

ne.

*

Where

specif

ic f

ooti

ng c

oncre

te

an

d s

tem

co

ncre

te i

tem

s a

re i

nclu

ded

in t

he P

roposal

for

a p

art

icula

r

wall

, th

ese s

hall

b

e t

he p

ay

lim

its.

Where

no s

pecif

ic i

tem

s h

ave b

een

set

up

in

th

e P

rop

osal,

th

e c

ost

of

wall

shall

be i

nclu

ded i

n t

he

main

str

uctu

re C

on

tract

pri

ce,

i.e.;

box c

ulv

ert

, (w

here

win

gs a

re

inclu

ded

in

bo

x c

ulv

ert

ite

m),

;

reta

inin

g w

all

, (w

here

no s

epara

te

pay

ite

ms a

re e

sta

bli

sh

ed

), e

tc.

#4

@ 1

’-6

’’ c

/c f

or

wall

ty

pes

H-

I t

hru

H-

III

#4 @

1’-

0’’

c/c

for

wall

types

H-

IV a

nd H

- V

#5 @

1’-

0’’

c/c

for

wall

types

H-

VI

and H

- V

II

For

Dra

inage S

yst

em

, S

ee R

W-3

01

or

SU

B-D

R-2

03

VERSION

DETAIL NO.

11/13/2007

1.0

2 2

RE

TA

ININ

G W

AL

LS

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

HA

BC

DE

FJ

KK

JK

JK

40 T

ON

S25 T

ON

S55 T

ON

S70 T

ON

S

J

6’-0

’’

8’-0

’’

10’-

0’’

12’-

0’’

14’-

0’’

16’-

0’’

18’-

0’’

1’-0

’’

1’-0

’’

1’-0

’’

1’-3

’’

1’-9

’’

2’-0

’’

2’-6

’’

1’-6

’’

2’-0

’’

2’-6

’’

3’-0

’’

3’-6

’’

4’-0

’’

4’-3

’’

4’-3

’’

4’-3

’’

4’-3

’’

4’-3

’’

4’-3

’’

4’-3

’’

6’-0

’’

6’-9

’’

7’-3

’’

8’-0

’’

9’-0

’’

2’-3

’’

2’-3

’’

2’-6

’’

2’-6

’’

2’-6

’’

2’-6

’’

2’-6

’’

#8

@ 6

’’

#8

@ 6

’’

#8

@ 6

’’

#5

@ 1

’-0

’’

#6 @

1’-

0’’

#7

@ 1

’-0

’’

#8

@ 1

’-0

’’

#8

@ 1

’-0

’’

2’-2

’’

3’-0

’’

3’-6

’’

4’-7

’’

4’-7

’’

4’-7

’’

4’-7

’’

5’-0

’’10

’-0’

’

Note

s:

Contr

acto

r has o

pti

on o

f la

ppin

g s

tem

If i

n t

he l

ength

of

a w

all

th

e t

ype o

f w

all

changes

and p

rovid

es f

or

a d

iffe

rent

thic

kness o

f ste

m,

gre

ate

r th

an

th

e l

east

wall

th

ick

ness.

rein

forc

em

en

t w

ith

to

e r

ein

forc

em

en

t an

d/o

r

do

wels

as s

ho

wn

; o

r b

y e

xte

nd

ing

th

e t

oe

an

d/o

r d

ow

el

rein

forc

em

en

t w

ith

no

sp

licin

g.

alt

ern

ati

ve i

s s

ele

cte

d.

1.

2.

K

JJ

Sca

le:

1/2

’’

= 1

’-0’’

TY

PIC

AL

PIL

E P

LA

N

3.

1’-6

’’1’

-6’’

D

10’-

9’’

#5

@ 1

’-0

’’

#6 @

1’-

0’’

#7

@ 1

’-0

’’

#8

@ 1

’-0

’’

#5

@ 1

’-0

’’

#6 @

1’-

0’’

#7

@ 1

’-0

’’

#8

@ 1

’-0

’’

#8

@ 1

’-0

’’

#8

@ 1

’-0

’’

#8

@ 1

’-0

’’

9’’

9’-9

’’

PIL

E C

AP

AC

ITY

- D

ES

IGN

LO

AD

#8

@ 1

’-0

’’

5’-0

’’5’

-0’’

5’-0

’’10

’-0’

’10

’-0’

’10

’-0’

’

5’-0

’’10

’-0’

’10

’-0’

’10

’-0’

’5’

-0’’

5’-0

’’

H-I

H-I

I

H-1

11

H-I

V

H-V

H-V

I

H-V

II

#5

@ 6

’’

#6 @

6’’

#7

@ 6

’’

#8

@ 6

’’

#8

@ 6

’’

#8

@ 6

’’

#8

@ 6

’’#

8 @

6’’

Th

ese w

all

s a

re v

ali

d i

f th

e s

lop

ing

back

fill

lev

els

4. H

pil

es s

how

n f

or

illu

str

ati

on p

urp

ose o

nly

.

Contr

act

Dra

win

g.

Fo

r p

ile t

yp

e,

see P

ile L

ay

ou

t o

n p

ert

inen

t

5. P

ile s

pacin

gs

are

maxim

um

. F

or

actu

al

pil

e s

pacin

g,

see P

ile L

ayout

on p

ert

inent

Contr

act

Dra

win

g.

off

and t

raff

ic i

s p

resent

on t

he l

evel

are

a.

then

’’D

eta

il A

’’ s

hall

be u

sed

fo

r all

w

all

s o

f

11-13-2007

LR D

VERIFIED

F

3’-6

’’7’

-0’’

4’-0

’’8’

-0’’

4’-0

’’8’

-0’’

4’-0

’’8’

-0’’

4’-0

’’8’

-0’’

4’-0

’’8’

-0’’

3’-0

’’6’

-0’’

3’-9

’’7’

-6’’

3’-0

’’6’

-0’’

Capacit

ies i

nclu

de r

esis

tance f

acto

rs (

LR

FD

only

).6.


DIRECTOR


RW-109

Wal

l

Ty

pe

Rear

Dow

el B

ar

Top

Footi

ng B

ar

Mai

n

Ste

m B

ar

Bo

tto

m

Footi

ng B

ar

TYPE H RETAINING WALL SECTION (FOR PILEFOOTING AND SLOPING GROUNDLINE)

Ho

wev

er,

no

ad

dit

ion

al

co

mp

en

sati

on

to

Co

ntr

acto

r w

ill

be a

llo

wed

fo

r w

hic

hev

er

VERSION

DETAIL NO.

11/13/2007

1.0

1 2

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

c Brg.

Scale: 1/4 ’’ = 1’-0’’

Scale: 1/4 ’’ = 1’-0’’

RE

TA

ININ

G W

AL

LS

SKEWED ABUTMENT

c Brg.

90^ ABUTMENT

Reta

inin

g W

all

Reta

inin

g W

all

Abutment Footing

Wing Wall Footing Wing Wall Footing

Reta

inin

g W

all

Reta

inin

g W

all

Wing Wall Footing

Wing Wall Footing

GUIDE FOR ABUTMENT AND WING WALL FOOTING INTERSECTION

Abutment Footing

6’’

6’’

Sta

nd

ard

Sta

nd

ard

Sta

ndard

Sta

ndard

Std

. R

eta

inin

g W

all

Ste

m

Std

. R

eta

inin

g

Wall

Ste

m

Std

. R

eta

inin

g W

all

Ste

m

Std

. R

eta

inin

g W

all

Ste

m

Exp. Joint Exp. Joint

Exp. Joint

Exp. Joint

Note:For additional details of expansion

DIRECTOR



RW-201

* FOR OFFICE USE ONLY *

joint refer to SUB-WW-101

STANDARD RETAINING WALLSTANDARD DETAILS

* GUIDE SHEET FOR PLAN DEVELOPMENT ONLY - DO NOT INCLUDE THIS SHEET IN CONTRACT PLANS *

VERSION

DETAIL NO.

1.0

7/16/2002

2 2

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

RE

TA

ININ

G W

AL

LS

GUIDE FOR WALLS WITH AESTHETIC SURFACE TREATMENT

Scale: 3/8 ’’ = 1’-0’’

Scale: 3/8 ’’ = 1’-0’’

2’’cl.

2’’cl.

2’’cl.

Finished Roadway

1’-1

1’’

3’’

3’’

1’-0’’

Normal Wall Reinforcement

6 - #5 Bars Spaced As Shown

*

2’’cl.

Normal Wall Reinforcement

2’’cl.

2’’ Surface

A = Normal Stem Thickness,

2 1/2 ’’cl. to 3’-11’’ Dowel

See appropriate StandardRetaining Wall sheet

GUIDE FOR PARAPET ATTACHMENT FOR WALLS WITH 1’-0’’ STEM THICKNESS

A

Treatment

Thickness may vary depending ontype of surface treatment used.

*

6 1/4 ’’*

2’-2

’’*

*

*

*

OFFICE OF STRUCUTRES

DIRECTOR


RW-201


STANDARD RETAINING WALLSTANDARD DETAILS

Parapet shown for illustration

purpose only. These dimensions

may change depending on type

of parapet used.

#5 Epoxy Coated Dowels 3’-11’’ long

See End Post Details for spacing

as well as steel pattern to be utilized

in barrier.


VERSION

DETAIL NO.

7/16/2002

1.0

1 1

Finished Groundline

Dampproof

Gutter LineSidewalk Area

-

Finished GroundlineFinished Groundline

Top of proposed sidewalk.

Provide joint in sidewalk

over PVC pipe

4’’ PVC pipe. Slope pipe 2% + to outlet.

Invert at outlet to be 2’’ above gutter line.

(15’ Maximum Spacing)

System I or I I as

dictated by below

If front face of wall is visible to

pipe shall extend 3’’ from face of

wall; for sidewalks adjacent to

wall see above; for all other

conditions make flush.

Dampproof

1’-

0’’

Finished

1’-

0’’

This system shall be used for all retaining walls, all

This system shall be used for all box culvert wing walls

less than 16’ high (height of wall from bottom of footing totop of highest section). One drain shall be placed at L of wall

for all walls less than 15’ long. For walls between 15’ and 30’ long,

two drains shall be placed, one at each third point.

9’’

Dampproof

1’-0’’

Porous Backfill

6’’ perforated PVC Drain Pipe

sloped to drain to each outlet

pipe (minimum slope 1/4 ’’/ft.)

2’-0’’

1’-4’’

DRAIN AT SIDEWALK

Scale : None

c

Scale : None

Scale : None

SYSTEM II

SYSTEM I

1.

2.

6’’ Non-Perforated PVC Circular Pipe

Underdrain Outlet with T-Connection to

6’’ Pipe Underdrain (15’ Maximum

Spacing, 1’’ Fall).

vehicular or pedestrian traffic, drain

and other wing walls that are both less than 30’ long and

#5 @ 1’-6’’ c/c

#5’s spaced as shown

2-#5 bars 1’-6’’ long#5 @ 1’-6’’ c/c

#5’s spaced as shown

*

**

*#5 Threaded Rebar Dowel

Coupler at 1’-6’’ c/c.

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

RE

TA

ININ

G W

AL

LS

wing walls (not in System I).

2-#5 @ 1’-6’’ c/c

1’-4’’

1’-4’’

3.

1:6 slope to drain to wall

Groundline

Finished

Groundline


DIRECTOR

OFFICE OF STRUCUTRES

RW-301

If wall has concrete flume

at rear face carry Porous

Backfill to underside of flume

2 cu. ft. Porous Backfill

at each drain

Concrete (Mix No. 1 or better)

Slope rear face as steep as

ground will allow.

Note:

Exact elevation of drain to be determined

RETAINING WALL AND WING WALL

DRAINAGE SYSTEMS

2’ square concrete

block at each drain,

see System II

for additional details

6’’ PVC

Drain Pipe

by Engineer in field.

Porous backfill (refer to Section 469).

Use this standard for bridges with wing

walls that are not parallel to the highway.

For bridges with wing walls parallel to the

highway see Std. No. SUB-DR-203

sheet 5 of 5 for details.

VERSION

DETAIL NO.

1.0

01/22/2001

1 1

RE

TA

ININ

G W

AL

LS

CONCRETE RETAINING WALL

CONTRACTION AND EXPANSION JOINTS

Joint locations shall be as shown on contract drawing. If

no locations are given concrete retaining walls shall have

contraction joints a maximum of every 30’-0’’; and expansion

Stop key 9’’ below top of wall.

Reinforcing steel shall not pass through

contraction or expansion joint.

For battered walls, with stems greater

than 12 feet height, key dimensions

noted thus , shall be based on wall

thickness at mid height.*

All keys are nominal size.

Notes:

1.

2.

3.

4.

5.

6.

W = Width at top of wall.

* *W/3 W/3 W/3

W = Width at top of wall.

* *W/3 W/3 W/3

W/6

W/6

1’’

1’’

**

Exposed face to have

**

Exposed face to have

3/4 ’’ x 3/4 ’’ chamfer.

3/4 ’’ x 3/4 ’’ chamfer.

**

1/2 ’’ 1/2 ’’

*

STEM EXPANSION JOINT

SECTION

SECTION

STEM CONTRACTION JOINT

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

2’’ cl. typ.

2’’ cl. typ.

a maximum of every 90’-0’’

Scale: 1 1/2 ’’ =1’-0’’

Scale: 1 1/2 ’’ =1’-0’’


DIRECTOR


RW-401

Only place contraction and expansion

joints in stems (no joint in footer).

No chamfer required on

non-exposed face.

Single layer of tarpaper, full

height of key. Fasten to concrete

with asphaltic cement.

Be sure last vertical bar is

placed at this location for

segment with recessed key.

No chamfer required on

non-exposed face.

Dampproof one side

full height of key.

This dimension will vary on

battered walls.

1’’ Sponge type joint material full

height of wall. Fasten to one

face with copper nails.

(See note 1, below).

joints, with 1’’ sponge type material (see 911.02),

VERSION

DETAIL NO.

05/04/2006

1.0

Additional #5 bars.

as shown.

5’-0’’

1’-6’’

1’-0’’ For footings under 2’-0’’ thick.

1.

KEY SIZES

T Key

TYPICAL SECTION

1 1

RE

TA

ININ

G W

AL

LS

5’-

0’’

Maxim

um

STEPPED FOOTING DETAIL

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

For footings 2’-0’’ thick and over.

’’T

’’

’’T

’’

2’’ x 4’’

3’’ x 6’’

4’’ x 8’’

5’’ x 10’’

1’-0’’ to 1’-5’’

1’-6’’ to 1’-11’’

2’-0’’ to 2’-5’’

2’-6’’ to 3’-0’’

Scale: 3/8 ’’=1’-0’’

DIRECTOR



RW-402

Bend these bars and

extend to bottom of

lower footer.

Normal reinforcing steel

Top and bottom (Typ.).

Slope as steep as

ground will allow.

If no bottom layer is called for, then

additional #5 bars bent thus

If bottom mat is called for, bend upper

layer of bottom mat and extend upward

Notes:

All keys are nominal size.

Maximum vertical spacing is

1’-0’’ for additional bars.

Optional construction joint with

key (Typ.) (one construction joint

required). For key size see chart.

shall be provided @ 1’-0’’. #5 bars @ 1’-0’’

shall also be provided perpendicular to

these bars for the 5’-0’’ length.

VERSION

DETAIL NO.

1.0

08/28/2002

RE

TA

ININ

G W

AL

LS

5’-

0’’

Max

imu

m

1 1

1.

KEY SIZES

T Key

TYPICAL SECTION

1’-6’’ 1’-6’’

Slope as steep as

ground will allow.

Bend these bars and

extend to bottom of

lower footer.

Normal reinforcing steel

Top and bottom (Typ.).

Bend these bars and

extend to top of

upper footer.

2.

3-#6 bars each way

over piles (typ.).

Additional #5 bars

(maximum vertical

Optional

1’-

0’’

1’-

0’’

*

*

3’’ cl. typ.

Notes:

STEPPED FOOTING DETAIL WITH PILES

DATE:



STATE OF MARYLAND

SHEET OF

APPROVAL

Minimum step length = 10’-0’’

2’’ cl. typ.

spacing of 1’-0’’).

’’T

’’

Scale: 3/8 ’’ = 1’-0’’

4’’ x 8’’

5’’ x 10’’

2’-0’’ to 2’-5’’

2’-6’’ to 3’-0’’


DIRECTOR


RW-403

To center line of pile

and to end of lower footer.

Steel H piles shown. Other pile types

similar.

See Plan of Footing for orientation

of piles.

3’’ cl.

typ.

construction

joint with key

(Typ.) (one

construction

joint required).

For key size see

chart.

VERSION

DETAIL NO.

1.0

07/16/2002

Note:

ELEVATION

1 1

REINFORCEMENT ADJUSTMENTAT UTILITY AND/OR PIPE OPENING IN WALL

Increase the size of each of the first

three normal main vertical reinforcing steel

bars, on each side of the wall opening.

New bar size shall be such that each

the total area of the main reinforcing steel

that has been cut.

When pipe size is over 3’-0’’, sufficient

horizontal bars shall be addded over and

below opening to transfer load to adjacent

full sections of wall.

In no case shall concrete cover be less

than 2’’.

1.

2.

3.

Utility

and

/or

Pipe O

peni

ng

6’’

Typ.

2’’ min. cl. (Typ.)

These bars to have area increased.

Scale: None

DATE:



STATE OF MARYLAND

SHEET OF

APPROVALincrease in bar area shall at least equal /16


DIRECTOR


RE

TA

ININ

G W

AL

LSRW-501


Normal Vertical Main

Reinforcing Steel for Wall.

#5 bars, each

face (Typical).

Normal Horizontal

Reinforcing Steel.

Adjust adjacent vertical & horizontal

steel pattern so that nearest bars to

opening are placed at minimum distances.

(This also applies to front face of wall).


VERSION

DETAIL NO.

07/02/1993

1.0

Chapter 05 RETAINING WALLS (RW) - roads.maryland.gov · splices, not shown, shall be lapped as per...

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